1 files changed, 5 insertions, 12 deletions
diff --git a/services/java/com/android/server/LockSettingsService.java b/services/java/com/android/server/LockSettingsService.java
index d52a8e2..e28a258 100644
--- a/services/java/com/android/server/LockSettingsService.java
+++ b/services/java/com/android/server/LockSettingsService.java
@@ -57,6 +57,7 @@ import java.util.List;
  */
 public class LockSettingsService extends ILockSettings.Stub {
 
+    private static final String PERMISSION = "android.permission.ACCESS_KEYGUARD_SECURE_STORAGE";
     private final DatabaseHelper mOpenHelper;
     private static final String TAG = "LockSettingsService";
 
@@ -143,20 +144,12 @@ public class LockSettingsService extends ILockSettings.Stub {
         }
     }
 
-    private static final void checkWritePermission(int userId) {
-        final int callingUid = Binder.getCallingUid();
-        if (UserHandle.getAppId(callingUid) != android.os.Process.SYSTEM_UID) {
-            throw new SecurityException("uid=" + callingUid
-                    + " not authorized to write lock settings");
-        }
+    private final void checkWritePermission(int userId) {
+        mContext.checkCallingOrSelfPermission(PERMISSION);
     }
 
-    private static final void checkPasswordReadPermission(int userId) {
-        final int callingUid = Binder.getCallingUid();
-        if (UserHandle.getAppId(callingUid) != android.os.Process.SYSTEM_UID) {
-            throw new SecurityException("uid=" + callingUid
-                    + " not authorized to read lock password");
-        }
+    private final void checkPasswordReadPermission(int userId) {
+        mContext.checkCallingOrSelfPermission(PERMISSION);
     }
 
     private final void checkReadPermission(String requestedKey, int userId) {